The correct answer is option d, that is, atoms of the element.
As the atoms are neither destroyed nor created in a chemical reaction, the sum of the mass of the products in a reaction must be equivalent to the sum of the mass of the reactants.
The chemical reactions must be balanced, they must exhibit a similar number of atoms of each element on both the sides of the equation. As a consequence, the mass of the reactants must be equivalent to the mass of the products of the reaction.
Answer:
Bundling up, starting a fire, body warmth, blankets, taking a hot shower/bath.
Sorry but do you have any clearer photos? Or can you leave the question below I’ll gladly help
